docs: def keys_list(gandi, fqdn):
      """List domain keys."""
      keys = gandi.dns.keys(fqdn)
      output_keys = ['uuid', 'algorithm', 'algorithm_name', 'ds', 'flags',
                     'status']
      for num, key in enumerate(keys):
          if num:
              gandi.separator_line()
          output_generic(gandi, key, output_keys, justify=15)
      return keys